Sorry, the only magazine I knew was in the US (CatFancy) and went out of business but then became a new magazine, Catster, but doesn't seem like it takes an overseas address.
You probably have seen this already but also would be a cute present- about HK shop cats (it's in a bunch of souvenir stores, not just bookstores).
https://www.chinesewhiskers.com/hong-kong-shop-cats
Also, you could get a membership for her to SPCA (you may already have this) and get PawPrint (their magazine) a few times a year. Also they have a calendar. Not sure if any other pet rescue organizations have similar publications...